{"id":776,"date":"2015-09-30T08:17:43","date_gmt":"2015-09-30T08:17:43","guid":{"rendered":"http:\/\/yoonhada.com\/wp\/?p=776"},"modified":"2023-12-27T03:10:59","modified_gmt":"2023-12-26T18:10:59","slug":"3d-%ea%b8%b0%ec%b4%88%ec%83%81%ec%8b%9dspline%ec%97%90-%ea%b4%80%ed%95%b4","status":"publish","type":"post","link":"http:\/\/yoonhada.com\/?p=776","title":{"rendered":"3D \uae30\ucd08\uc0c1\uc2dd:SPLINE\uc5d0 \uad00\ud574"},"content":{"rendered":"<p style=\"color: #000000;\"><a href=\"http:\/\/fazz.tistory.com\/m\/post\/98\">http:\/\/fazz.tistory.com\/m\/post\/98<\/a><\/p>\n<p style=\"color: #000000;\">NURBS\ub294 Non-Uniform Rational B-Spline\uc758 \uc57d\uc790\ub85c\uc368 \uc77c\uc885\uc758 \ucef4\ud4e8\ud130\uc5d0\uc11c \uace1\ub960\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\ub294 \uc5ec\ub7ec \uc120(SPLINE) \uc885\ub958\uc911 \ud558\ub098\uc778\ub370 \uc774 NURBS\ub97c \uc124\uba85\ud558\ub824\uba74 \uba3c\uc800 SPLINE\uc758 \uc885\ub958\uc5d0 \ub300\ud55c \uc774\ud574\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uadf8\ub798\uc11c \uba3c\uc800 \uac01 SPLINE\uc758 \uc885\ub958\uc640 \uadf8\uc5d0 \ub530\ub978 \uc544\uc8fc \uac04\ub2e8\ud55c \uc124\uba85\uc744 \ud55c \ub2e4\uc74c NURBS\uc5d0 \ub300\ud574 \ubcf8\uaca9\uc801\uc73c\ub85c \ub2e4\ub904\ubcf4\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4.<br \/>\n\uadf8\ub807\uae30\uc5d0 \uc774\ubc88\uc5d0\ub294 NURBS \ubaa8\ub378\ub9c1\uc5d0 \uad00\ud55c \uc804\ubc18\uc801\uc778 \uc124\uba85\uc744 \ub2e4\ub8e8\uc9c0 \ubabb\ud558\uace0 \ub2e4\uc74c \ud3ec\uc2a4\ud305\uc73c\ub85c \ub118\uaca8\uc57c\uaca0\uad70\uc694.(\uc0dd\uac01\uc9c0\ub3c4 \uc54a\uac8c \ub354 \uc790\uc138\ud558\uac8c \ub4e4\uc5b4\uac14\uc2b5\ub2c8\ub2e4. -_-)<\/p>\n<p>\ucc38\uace0\ub85c \ucef4\ud4e8\ud130\uc5d0\uc11c \uad6c\ud604\ub418\ub294 \uace1\uc120\uc5d0 \ub300\ud55c \uc124\uba85\uc740 \ud544\uc5f0\uc801\uc73c\ub85c \uc218\ud559\uc801 \ud568\uc218 \uacf5\uc2dd\uc774 \uc218\ubc18\ub429\ub2c8\ub2e4. \uc800\ub3c4 \uc804\uacf5\uc790\uac00 \uc544\ub2c8\uae30 \ub54c\ubb38\uc5d0 \ucd5c\ub300\ud55c \uc774\ucabd \uc804\ubb38\uc801\uc778 \uc9c0\uc2dd\uc740 \ubc30\uc81c\ud558\uace0 \uc774\ud574\ud558\uae30 \uc27d\uac8c \ud558\ub824\uace0 \uc778\ud130\ub137 \ubc0f \ucef4\ud4e8\ud130 \uadf8\ub798\ud53d\uc5d0 \uad00\ub828\ub41c \uc11c\uc801\uc744 \ub4a4\uc838\uc11c \uc815\ub9ac\ub97c \ud588\uc9c0\ub9cc&#8230;&#8230;&#8230; \uadf8\uac8c \uadf8\ub807\uac8c \uc27d\uac8c \ub418\ub294 \uc131\uc9c8\uc758 \uac83\uc774 \uc544\ub2c8\ub354\uad70\uc694. \uacb0\uad6d \uc774\ucabd \uc804\uacf5\uc774 \uc544\ub2c8\uc2e0 \ubd84\uc740 \ubb54 \uc18c\ub9ac\ud558\ub294\uaca8? \ud558\uace0 \uc804\ud600 \uc774\ud574 \ud560 \uc218 \uc5c6\uc73c\uc2e4\uc9c0 \ubaa8\ub974\uaca0\ub2e4\ub294 \uc0dd\uac01\uc774 \ub4ed\ub2c8\ub2e4. \uadf8\ub7ec\ub2c8 \uadf8\ub0e5 \uc774\ub7f0 \uac83\uc774 \uc788\uace0 \uac01 \uace1\uc120\uc758 \ud2b9\uc9d5\uc774 \uadf8\ub807\uad6c\ub098 \uadf8\ub798\uc11c NURBS\uac00 \uc720\uc6a9\ud558\uac8c \uc4f0\uc774\ub294\uad6c\ub098\ub9cc \uc544\uc2dc\uba74 \ub420 \ub4ef\ud569\ub2c8\ub2e4.<br \/>\n\uadf9\ub2e8\uc801\uc73c\ub85c \ub9d0\ud574\uc11c\ub294 \uc774\ubc88 \ud3ec\uc2a4\ud305\uc740 \uadf8\ub0e5 \ub118\uc5b4\uac00\uace0 \ub2e4\uc74c \ud3ec\uc2a4\ud305\ubd80\ud130 \ubcf4\uc154\ub3c4 \ubb34\ubc29\ud560\ub4ef\ud569\ub2c8\ub2e4. \uc554\ud2bc \uc81c\uac00 \uc0dd\uac01\ud558\uace0 \uc788\ub294 3D \uad00\ub828 \ud3ec\uc2a4\ud305\uc911\uc5d0\uc11c \uc774 \ud3ec\uc2a4\ud305\ub9cc \uc5b4\ub824\uc6b4 \uac83\uc774\ub2c8 \ub2e4\uc74c \ud3ec\uc2a4\ud305\uc740 \uc0c1\uc2dd \uc218\uc900\uc5d0\uc11c \uc774\ud574\ud558\uc2e4 \uc218 \uc788\uc744\uac70\ub77c \uc0dd\uac01\ud569\ub2c8\ub2e4. -_-;;<\/p>\n<p>\uc790\ub8cc\ucd9c\ucc98:<br \/>\nGRAPHICS LIVE 2001\ub144 8\uc6d4\ud638<br \/>\nhttp:\/\/www.copyeditor.co.kr\/reference\/char-font\/bezier.htm<br \/>\nhttp:\/\/210.94.177.75\/laser\/lecture\/cadcam1\/ch3.html<br \/>\nhttp:\/\/fiadot.com\/wiki\/home\/moin.cgi\/3D_bf_eb_be_ee_c1_a4_b8_ae<br \/>\nhttp:\/\/msdn.microsoft.com\/library\/default.asp?url=\/library\/en-us\/gdicpp\/GDIPlus\/aboutGDIPlus\/linescurvesandshapes\/cardinalsplines.asp<\/p>\n<p>&nbsp;<\/p>\n<div id=\"content98_1\" class=\"moreless_content\" style=\"color: #000000;\">\n<p><strong>1. SPILNE\uc774\ub780?<\/strong><\/p>\n<p>\uc65c \ucef4\ud4e8\ud130\uc5d0\uc11c \uc218\ud559\uc801 \ud568\uc218\ub97c \uc774\uc6a9\ud574 \uadf8\ub824\uc9c0\ub294 \uc120\uc744 \ub2e8\uc21c\ud788 LINE\uc774\ub77c \ud558\uc9c0 \uc54a\uace0 SPLINE\uc774\ub77c \ud558\ub294 \uc774\uc720\ub294 \uace1\ub960\ud45c\ud604 \ub54c\ubb38\uc5d0 \uadf8\ub807\uc2b5\ub2c8\ub2e4. \uacfc\uac70\uc5d0 \uc120\uc758 \uace1\ub960\uc774 \ub9e4\uc6b0 \uc911\uc694\ud55c \ubc30\uc758 \uc120\uccb4\ub098 \uac74\ubb3c\uc758 \ub3d4\uc744 \ub514\uc790\uc778\ud558\uae30 \uc704\ud574\uc11c \uc81c\ub3c4\uc0ac\ub4e4\uc740 \uac00\ub298\uace0 \uae34 \ucca0\uc0ac\ub098 \ub098\ubb34\ub85c \uadf8 \uace1\ub960\uc744 \ub9de\ucd94\uae30 \uc704\ud574 \uc6b4\ud615(\u96f2\u5f62)\uc758 \uc790\ub97c \uc0ac\uc6a9\ud588\ub294\ub370 \uadf8\uac83\uc744 SPLINE\uc774\ub77c \ubd88\ub800\uc2b5\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \uc774\ub97c \uc720\uc5f0\ud558\uac8c \uc870\uc808\ud558\uae30 \uc704\ud574\uc11c \ud544\uc694\ud55c \uacf3\uc5d0 \ub0a9\ub369\uc774\ub97c \ub2ec\uc544\uc11c \uadf8 \ubb34\uac8c \uc815\ub3c4\uc5d0 \ub530\ub77c \uc138\ubc00\ud558\uac8c \uace1\ub960\uc744 \uc870\uc808\ud558\uc600\uc2b5\ub2c8\ub2e4. \uc774\uac83\uc5d0 \ucc29\uc548\ud574\uc11c \ud604\uc7ac \ub2e4\uc591\ud55c \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c \ud604\uc7ac \uc6b0\ub9ac\uac00 \uace1\ub960\uc744 \uc0ac\uc6a9\ud558\ub294 \uc120\uc744 \uadf8\ub9ac\ub294 \ud234\ub85c \ud504\ub85c\uadf8\ub7a8\ud654\uc2dc\ucf30\uc9c0\uc694. \uadf8\ub807\uae30 \ub54c\ubb38\uc5d0 \uace1\ub960\uc774 \uad6c\ud604\ub418\ub294 \uc120\uc744 \ub2e8\uc21c\ud788 LINE\uc774\ub77c \ud558\uc9c0 \uc54a\uace0 SPLINE\uc774\ub77c\uace0 \ubd80\ub974\ub294 \uac83\uc785\ub2c8\ub2e4. \uc2e4\uc81c\ub85c \ubca0\uc9c0\uc5b4 \ucee4\ube0c\ub098 CARDIANL SPLINE\uc774\ub098 NURBS\ub098 \uc2e4\uc81c \ub05d\uc810\uc744 \uac00\uc9c0\uace0 \uc120\ubd84\uc758 \uace1\ub960\uc744 \uc870\uc815\ud558\ub294 \uac83\uc774 \uc544\ub2cc \uc870\uc808\uc810\uc744 \uac00\uc9c0\uace0 \uace1\ub960\uc744 \uc870\uc815\ud558\ub294 \uac83\uc774\ub2c8, \uc61b\ub0a0 SPLINE\uc5d0 \ub2ec\ub9b0 \ub0a9\uc744 \uac00\uc9c0\uace0 \uace1\ub960\uc744 \uc870\uc815\ud55c \uc81c\ub3c4\uc0ac\ub4e4\uc774 \ud588\ub358 \uac83\uacfc \uac19\uc740 \uc774\uce58\ub77c\uc11c \ub354\ub354\uc6b1 SPLINE\uc774\ub77c \ubd80\ub974\ub294 \uac83\uc774\uc9c0\uc694. \ubcf4\uba74 \uc11c\uc591\uc560\ub4e4 \uc61b\ub0a0 \uc870\uc0c1\ub4e4\uc774 \uc4f0\uace0 \ubc1c\uc804 \uc2dc\ud0a8 \uac83\uc5d0 \ub300\ud55c \uc874\uacbd\uc758 \uc758\ubbf8\ub85c \uc6a9\uc5b4\ub97c \ucc44\ud0dd\ud574 \uc4f0\ub294 \uacbd\ud5a5\uc774 \ub9ce\uc740 \uac70 \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<br \/>\n<strong>2. \ucef4\ud4e8\ud130\uc758 \uace1\uc120 \ud45c\ud604 \ubc29\ubc95<\/strong><\/p>\n<p>1960\ub144 \ubcf4\uc789 \ud56d\uacf5\uc0ac\uc758 J. C. \ud37c\uac70\uc2a8\uc774 \uc790\uc720\uace1\uc120\uc744 \ud45c\ud604\ud558\ub294 \ubc29\ubc95\uc744 \ucc98\uc74c \ub0b4\ub193\uc74c\uc73c\ub85c\uc368 \ucef4\ud4e8\ud130\uc5d0\uc11c \uace1\uc120\uc744 \ud45c\ud604\ud560 \uc218 \uc788\ub294 \ubc29\ubc95\uc774 \ucc98\uc74c \uc81c\uc2dc\ub418\uc5c8\uace0, \uc6b0\ub9ac\uac00 \ub110\ub9ac \uc4f0\uace0 \uc788\ub294 BEZIER CURVE\uac00 \ub098\uc628 \uac83\uc740 1971\ub144 \ub974\ub178 \uc790\ub3d9\ucc28\uc758 P. \ubca0\uc9c0\uc5b4\uc5d0 \uc758\ud574\uc11c\uc600\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub2c8\uae4c \ucef4\ud4e8\ud130\uc5d0\uc11c \uace1\uc120\uc744 \ud45c\ud604\ud560 \uc218 \uc788\uac8c \ub41c \uac83\uc740 35\ub144 \uc815\ub3c4 \ub418\uc5c8\ub2e4\uace0 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br \/>\n\uc774\ub7f0 \uace1\uc120 \ud45c\ud604 \ubb38\uc81c\ub294 \uc124\uacc4 \uad00\ub828 \uc601\uc5ed\uc5d0\uc11c \uba3c\uc800 \uc5f0\uad6c\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc704\uc5d0\uc11c \ud37c\uac70\uc2a8 \uace1\uc120\uc774\ub098 \ubca0\uc9c0\uc5b4 \uace1\uc120\uc744 \uace0\uc548\ud574 \ub0b8 \uc0ac\ub78c\ub4e4\uc744 \uc0b4\ud3b4\uba74 \ud56d\uacf5\uc0ac\uc640 \uc790\ub3d9\ucc28 \ud68c\uc0ac \uc18c\uc18d\uc774\ub77c\ub294 \uc0ac\uc2e4\uc5d0\uc11c\ub3c4 \uc54c \uc218 \uc788\ub4ef\uc774, \ucef4\ud4e8\ud130\ub85c \uc774\ub7ec\ud55c \uae30\uacc4\ub4e4\uc744 \uc124\uacc4\ud558\ub294 \uacfc\uc815\uc5d0\uc11c \ub098\ud0c0\ub0a0 \uc218\ubc16\uc5d0 \uc5c6\ub294 \uace1\uc120 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574 \uc5f0\uad6c\ub41c \uacb0\uacfc\uc600\ub2e4\ub294 \uac83\uc774\uc8e0.<br \/>\n\uc65c \uace1\uc120 \ud45c\ud604\uc774 \ubb38\uc81c\uc778\uac00? \ucef4\ud4e8\ud130\ub294 \uace1\uc120\uc774\ub77c\ub294 \uac1c\ub150\uc744 \uc54c\uc9c0 \ubabb\ud569\ub2c8\ub2e4. \ub2e4\ub9cc \uc5b4\ub5a4 \ud568\uc218\ub97c \uc8fc\uace0, \uc5ec\uae30\uc5d0 \uc5f0\uc18d\ub418\ub294 x \uac12\uc744 \ub123\uc5b4\uc8fc\uba74 \uadf8\uc5d0 \ub300\uc751\ub418\ub294 y \uac12\uc774 \ub098\uc634\uc73c\ub85c\uc368 \uace1\uc120\uc744 \ud45c\ud604\ud560 \uc218 \uc788\uac8c \ub418\ub294 \uac83\uc77c \ubfd0\uc785\ub2c8\ub2e4.<br \/>\n\uc6b0\ub9ac\uac00 \ud654\uba74\uc5d0\uc11c \ubcf4\ub294 \uace1\uc120\uc740 \uc0ac\uc2e4 \uace1\uc120\uc774 \uc544\ub2c8\ub77c \uc810\ub4e4\uc774 \ucd18\ucd18\ud558\uac8c \ubaa8\uc5ec \uc788\ub294 \uc9d1\ud569\uc774\ub77c\uace0 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4\uc11c \uc5b4\ub5a4 \uace1\uc120\uc744 x \uc88c\ud45c\uac00 1\ubd80\ud130 5\uae4c\uc9c0\uc778 \ubc94\uc704 \uc548\uc5d0\uc11c \uadf8\ub9b0\ub2e4\uace0 \ud588\uc744 \ub54c, \uc801\uc808\ud55c \ud568\uc218\ub97c \ub9cc\ub4e4\uc5b4 x \uac12\uc73c\ub85c 1, 2, 3, 4, 5\ub97c \ucc28\ub840\ub300\ub85c \ub123\uc5b4 \uc8fc\uba74 \uadf8\uc5d0 \ub530\ub974\ub294 y \uac12\uc774 \uacc4\uc0b0\ub420 \uac83\uc785\ub2c8\ub2e4. \uc774\ub807\uac8c \uc5bb\uc5b4\uc9c4 \uc810\ub4e4\uc744 \ud654\uba74\uc5d0 \ucc0d\uc5b4 \uc8fc\uba74 \uace1\uc120\uacfc \uac19\uc740 \ubaa8\uc2b5\uc744 \ubcfc \uc218 \uc788\uac8c \ub429\ub2c8\ub2e4.<\/p>\n<div>\n<p><span class=\"imageblock\"><a style=\"color: #2b2824;\" href=\"http:\/\/fazz.tistory.com\/m\/post\/98\/slideshow?order=1\"><img decoding=\"async\" class=\"item_image able_slideshow\" src=\"http:\/\/i1.daumcdn.net\/thumb\/R750x0\/?fname=http%3A%2F%2Fcfs3.tistory.com%2Fupload_control%2Fdownload.blog%3Ffhandle%3DYmxvZzM5NTQxQGZzMy50aXN0b3J5LmNvbTovYXR0YWNoLzAvODYuanBn%26filename%3D001.jpg\" alt=\"\uc774\ubbf8\uc9c0\" \/><\/a><\/span><\/p>\n<\/div>\n<p align=\"center\">(\uadf8\ub9bc1. \ucef4\ud4e8\ud130\uc5d0\uc11c \uace1\uc120\uc744 \ud45c\ud604\ud558\ub294 \ubc29\ubc95)<\/p>\n<p>\uc774\ub807\uae30 \ub54c\ubb38\uc5d0 SPLINE\uc758 \uc885\ub958\ub294 \uace1\uc120 \ud45c\ud604\uc744 \uc5b4\ub5a4 \ud568\uc218\ub85c \uac00\uc9c0\uace0 \ub098\ud0c0\ub0b4\ub290\ub0d0\uc5d0 \ub530\ub77c \uad6c\ubd84\ub418\ub294\ub370 \ud604\uc7ac \uc0c1\uc6a9\ud654 \ub418\uc5b4 \uc0ac\uc6a9\ud558\uace0 \uc788\ub294 SPLINE\uc758 \uc885\ub958\ub97c \ubcf4\uba74 \ud06c\uac8c LINEAR SPLINE, CARDINAL SPLINE, B-SPLINE, BEZIER CURVE, NURBS \uc815\ub3c4 \ub418\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<br \/>\n<strong>3. LINEAR SPLINE : \uac00\uc7a5 \uae30\ubcf8\uc774 \ub418\ub294 SPLINE<\/strong><\/p>\n<p>\ub9d0 \uadf8\ub300\ub85c \uc9c1\uc120\uc785\ub2c8\ub2e4. \ud568\uc218 \uc88c\ud45c \uac12\uc744 \uac04\ub2e8\ud788 \uc774\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c\uc368 \ubca0\uc9c0\uc5b4 \ucee4\ube0c\ub4f1\uc758 \uace1\ub960\uc744 \uae0b\ub294 \ubc29\ubc95\uc774 \uac1c\ubc1c\ub418\uae30 \uc804\uc5d0 \uc4f0\uc600\ub358 \ubc29\uc2dd\uc785\ub2c8\ub2e4. \ub2e4\ub978 \ub9d0\ub85c \ud558\uba74 \uadf8 \uc720\uba85\ud55c \ud3f4\ub9ac\uace4(polygon) \uc774\ub77c\uace0\ub3c4 \ud569\ub2c8\ub2e4. \uc6d0\ub9ac\ub294 \uc544\uc8fc \uac04\ub2e8\ud569\ub2c8\ub2e4. \uace1\uc120 \uc704\uc5d0 \uc788\ub294 \uba87 \uac1c\uc758 \uc810\uc744 \uc9d1\uc5b4\ub0b4\uace0, \uc774 \uc810\uc744 \uadf8\ub0e5 \uc9c1\uc120\uc73c\ub85c \uc774\uc5b4\uc11c \uace1\uc120\uc744 \ud45c\ud604\ud558\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4. \uc9c0\uae08\ub3c4 3\ucc28\uc6d0 \uadf8\ub798\ud53d \ud504\ub85c\uadf8\ub7a8\uc774\ub098 CAD\uc5d0\uc11c\ub294 \uc774 \ubc29\ubc95\uc744 \ub9ce\uc774 \uc4f0\uace0 \uc788\uc73c\uba70, \uc678\uacfd\uc120 \uae00\uaf34\uc758 \ucd08\uae30 \ud615\uc2dd\uc5d0\uc11c\ub3c4 \uc774 \ubc29\uc2dd\uc744 \uc0ac\uc6a9\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n<div>\n<p><span class=\"imageblock\"><a style=\"color: #2b2824;\" href=\"http:\/\/fazz.tistory.com\/m\/post\/98\/slideshow?order=2\"><img decoding=\"async\" class=\"item_image able_slideshow\" src=\"http:\/\/i1.daumcdn.net\/thumb\/R750x0\/?fname=http%3A%2F%2Fcfs2.tistory.com%2Fupload_control%2Fdownload.blog%3Ffhandle%3DYmxvZzM5NTQxQGZzMi50aXN0b3J5LmNvbTovYXR0YWNoLzEvMTEyLmpwZw%253D%253D%26filename%3D002.jpg\" alt=\"\uc774\ubbf8\uc9c0\" \/><\/a><\/span><\/p>\n<\/div>\n<p align=\"center\">(\uadf8\ub9bc2. LINEAR SPLINE\uc758 \uace1\uc120\ud45c\uc2dc \ubc29\ubc95)<\/p>\n<p>\ud68c\uc0c9 \uc2e4\uc120\uc73c\ub85c \ub41c \uace1\uc120\uc744 \ud45c\ud604\ud560 \ub54c \ud3f4\ub9ac\uace4 \ubc29\uc2dd\uc740 \uc774 \uace1\uc120 \uc704\uc5d0 \uc788\ub294 \uba87 \uac1c\uc758 \uc810\uc5d0 \ub300\ud55c \uc815\ubcf4\ub97c \uac16\uace0 \uc788\ub2e4\uac00, \uace1\uc120\uc744 \uadf8\ub824\uc57c \ud560 \ub54c\uc5d0\ub294 \uadf8\ub0e5 \uc774 \uc810\ub4e4\uc744 \uc774\uc5b4\uc11c \ud45c\ud604\ud569\ub2c8\ub2e4. \uc704 \uadf8\ub9bc\uc5d0\uc11c \uc54c \uc218 \uc788\ub294 \ubc14\uc640 \uac19\uc774, 4\uac1c\uc758 \uc810\uc744 \uc0ac\uc6a9\ud55c \ud68c\uc0c9 \uc810\uc120\ubcf4\ub2e4\ub294 9\uac1c\uc758 \uc810\uc744 \uc0ac\uc6a9\ud55c \uac80\uc740\uc0c9 \uc810\uc120\uc774 \uc6d0\ub798 \uace1\uc120\uc5d0 \ub354 \uac00\uae4c\uc6b4 \ubaa8\uc2b5\uc744 \uac00\uc9c0\uac8c \ub429\ub2c8\ub2e4. \uadf8\ub807\ub2e4\uba74 \uc6b0\ub9ac \uc778\uac04\uc758 \ub208\uc73c\ub85c \ubd24\uc744 \ub54c \uace1\uc120\ucc98\ub7fc \ubcf4\uc774\uac8c \ud558\ub824\uba74? \ud568\uc218 \uc88c\ud45c\uac12, \uc989 \uc810\uc758 \uc218\ub97c \ub298\ub9ac\uba74 \ub429\ub2c8\ub2e4. \ub9cc\uc57d \uc218\ubc31\uac1c\uc758 \uc810\uc744 \ucd18\ucd18\ud788 \ubc30\uc5f4\ud574\uc11c \uc774\uac83\uc744 \uc5f0\uacb0\ud558\uba74? \ube44\ub85d \uc644\uc804\ud55c \uace1\uc120\uc740 \uc544\ub2d0\uc9c0\ub77c\ub3c4 \uace1\uc120\ucc98\ub7fc \uc6b0\ub9ac \ub208\uc5d0 \ubcf4\uc774\uac8c \ub420 \uac83\uc785\ub2c8\ub2e4. \uc774\ub97c \uc751\uc6a9\ud55c \uac83\uc774 \ubc14\ub85c 3D\uc5d0\uc11c POLYGON GEOMETRY\ubc29\uc2dd\uc774\uba70 \ub2e8\uc704 \uba74\uc801\ub2f9 \uba74\uc218\ub97c \ub9ce\uc774 \uc918\uc11c \uace1\uba74\ucc98\ub7fc \ubcf4\uc774\uac8c \ud558\ub294 MESH SMOOTH \uba85\ub839\ub3c4 \ub2e4 \uc5ec\uae30\uc11c \uc751\uc6a9\ub418\uace0 \uc2dc\uc791\ub41c \ubc29\ubc95\uc774\ub780 \uc18c\ub9ac\uc785\ub2c8\ub2e4.<br \/>\n\uc774 \ubc29\ubc95\uc774 \uac00\uc9c4 \uc88b\uc740 \uc810\uc740 \uc9c1\uc120\uc744 \uacc4\uc18d \uc774\uc5b4\uc11c \ub9cc\ub4dc\ub294 \ubc29\ubc95\uc774\uae30 \ub54c\ubb38\uc5d0 \uacc4\uc0b0\uc774 \uac04\ub2e8\ud574\uc11c \ube60\ub974\uac8c \uace1\uc120\uc744 \uad6c\ud604\ud560 \uc218 \uc788\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4. \uadf8 \ub54c\ubb38\uc5d0 1\ucd08\uc5d0 \uc218\uc2ed \uc7a5\uc529, \uc5c4\uccad\ub09c \uc591 \uadf8\ub824\ub0b4\uc57c \ud558\ub294 3\ucc28\uc6d0 \uadf8\ub798\ud53d\uc5d0\uc11c\ub294 \uc544\uc9c1\ub3c4 \uc774 \ud3f4\ub9ac\uace4 \ubc29\uc2dd\uc744 \ub110\ub9ac \uc4f0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \ud655\ub300\ub97c \ud558\uba74 \ud560\uc218\ub85d \uac01\uc9c4 \ubaa8\uc591\uc774 \ub69c\ub837\ud574\uc9c0\uba70, \ub9e4\ub048\ud558\uac8c \ud45c\ud604\ud558\uae30 \uc704\ud574\uc11c\ub294 \uace1\uc120\uc5d0\uc11c \ub9ce\uc740 \uc810\uc744 \ubf51\uc544\uc11c \ubcf4\uad00\ud574\uc57c \ud558\uace0 \uadf8\ub7f4\uc218\ub85d \ucef4\ud4e8\ud130\uc5d0 \ubd80\ud558\ub97c \uac00\uc838\uc628\ub2e4\ub294 \uc57d\uc810\uc744 \uc548\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p><strong>4. \ud37c\uac70\uc2a8 \uace1\uc120<\/strong><\/p>\n<p>\ucef4\ud4e8\ud130\uc5d0\uc11c \uace1\uc120\uc744 \ud45c\ud604\ud55c\ub2e4\ub294 \uc758\ubbf8\ub97c \ub2e4\uc2dc \ud55c\ubc88 \uc0dd\uac01\ud574 \ubcf8\ub2e4\uba74, \uace1\uc120 \uc704\uc5d0 \uc788\ub294 \uba87 \uac1c\uc758 \uc810\uc5d0 \ub300\ud55c \uc815\ubcf4\ub97c \uac00\uc9c0\uace0 \ub098\uba38\uc9c0 \ube60\uc9c4 \ubd80\ubd84, \uace7 \uc810\uacfc \uc810 \uc0ac\uc774\ub97c \ucc44\uc6b0\ub294 \uac83\uc774\ub77c\uace0 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\uac83\uc744 \ud754\ud788 \ubcf4\uac04\ubc95(INTERPOLATION)\uc774\ub77c\uace0 \ud558\ub294\ub370, \uc704\uc5d0\uc11c \uc0b4\ud3b4\ubcf8 \ud3f4\ub9ac\uace4\uc740 \uadf8\ub0e5 \uc9c1\uc120\uc744 \uac00\uc9c0\uace0 \uc810\uacfc \uc810 \uc0ac\uc774\ub97c \ucc44\uc6b0\ub294 \uac83\uc774\uae30 \ub54c\ubb38\uc5d0 \ubcf4\ud1b5 \uc120\ud615 \ubcf4\uac04\uc774\ub77c\uace0 \ud569\ub2c8\ub2e4. \uc790\uc720 \uace1\uc120\uc744 \ud45c\ud604\ud558\ub294 \ubb38\uc81c\uc5d0 \ub300\ud574 \uc218\ud559\uc790\ub4e4\uc774 \uad00\uc2ec\uc744 \uac16\uac8c \ub418\uba74\uc11c \uc5ec\ub7ec \ubc29\ubc95\ub4e4\uc774 \ub098\uc654\ub294\ub370, \uadf8 \uac00\uc6b4\ub370 1960\ub144\ub300 \ucd08\uc5d0 \ubcf4\uc789 \ud56d\uacf5\uc0ac\uc758 J. C. \ud37c\uac70\uc2a8(J. C. Ferguson)\uc774 \uace0\uc548\ud55c \ubc29\ubc95\uc774 \ucd08\ucc3d\uae30\uc5d0 \ub110\ub9ac \uc4f0\uc774\ub358 \ubc29\ubc95\uc785\ub2c8\ub2e4. \ubcf4\uc789 \ud56d\uacf5\uc0ac\uc5d0\uc11c\ub294 \uc774 \ubc29\uc2dd\uc744 FMILL\uc774\ub77c\ub294 \uc2dc\uc2a4\ud15c\uc5d0 \uc801\uc6a9\ud588\uc73c\uba70, \ub2e4\uc74c\uacfc \uac19\uc740 \uc7a5\uc810 \ub355\ubd84\uc5d0 \ub9ce\uc740 \uc8fc\ubaa9\uc744 \ubc1b\uac8c \ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n<p>I)\ud3c9\uba74\uc5d0 \uc788\ub294 \uace1\uc120\ub9cc \uc544\ub2c8\ub77c 3\ucc28\uc6d0 \uacf5\uac04\uc5d0 \uc788\ub294 \ud615\uc0c1\ub3c4 \uac04\ub2e8\ud788 \ud45c\ud604\ud560 \uc218 \uc788\ub2e4.<br \/>\nII)\uace1\uc120\uc774\ub098 \uace1\uba74\uc758 \uc77c\ubd80\uc5d0 \ub300\ud55c \ud45c\ud604\ub3c4 \uac04\ub2e8\ud788 \ud560 \uc218 \uc788\ub2e4.<br \/>\nIII)\uace1\uc120\uc774\ub098 \uace1\uba74\uc774 \uc88c\ud45c \uc704\uc5d0\uc11c \uc874\uc7ac\ud558\ub294 \uc790\ub9ac\ub97c \uc62e\uae30\uace0\uc790 \ud558\uba74 \ub2e8\uc21c\ud788 \uc8fc\uc5b4\uc9c4 \ubca1\ud130\ub9cc\uc744 \uc62e\uaca8\uc11c \ubcc0\ud658\ud558\uc5ec \uc6d0\ud558\ub294 \uacb0\uacfc\ub97c \uc5bb\uc744 \uc218 \uc788\ub2e4.<\/p>\n<p>\ud37c\uac70\uc2a8 \uace1\uc120\uc774 \uac16\uace0 \uc788\ub294 \ubc29\ubc95\uc740 \uc694\uc998 \ub110\ub9ac \uc4f0\uc774\uace0 \uc788\ub294 \ubca0\uc9c0\uc5b4 \uace1\uc120\uc774\ub098 B-\uc2a4\ud50c\ub77c\uc778 \uace1\uc120\uacfc \ud06c\uac8c \ub2e4\ub978 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. \uace1\uc120\uc744 \ub2e8\uc704\ub85c \ucabc\uac1c\uc5b4 (\uc774\uac83\uc744 pach\ub77c\uace0 \ud569\ub2c8\ub2e4) \uc774 \ub2e8\uc704 \uac01\uac01\ub9c8\ub2e4 \uc2dc\uc791\uc810\uacfc \ub05d\uc810, \uadf8\ub9ac\uace0 \uc774 \uc0ac\uc774\ub97c \uc787\ub294 \uace1\uc120\uc744 \ud45c\ud604\ud558\uae30 \uc704\ud55c \ubca1\ud130 \uac12\uc744 \uc9c0\uc815\ud558\uace0 \uc774 \uc815\ubcf4\ub97c \ud1a0\ub300\ub85c \uace1\uc120\uc744 \ud45c\ud604\ud569\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \uc774\ub7ec\ud55c \ub2e8\uc704 \uace1\uc120\uc744 \uacc4\uc18d \uc774\uc5b4\ub098\uac00\uba74 \uc6d0\ud558\ub294 \uace1\uc120\uc774 \ub9cc\ub4e4\uc5b4\uc9d1\ub2c8\ub2e4.<\/p>\n<p>\ud558\uc9c0\ub9cc \uc774 \ubc29\ubc95\uc740 \ubb38\uc81c\ub97c \uc548\uace0 \uc788\ub294\ub370, \uc774\ub7ec\ud55c \ub2e8\uc704 \uace1\uc120\ub4e4\uc744 \uc774\uc5b4\uc11c \ubcf5\ud569 \uace1\uc120\uc744 \ub9cc\ub4e4\uc5c8\uc744 \uacbd\uc6b0, \uac01 \ub2e8\uc704\uc758 \ubaa8\uc11c\ub9ac \ubd80\ubd84\uc774 \uc6d0\ub798 \ub73b\ud588\ub358 \uac83\ubcf4\ub2e4 \ud3c9\ud3c9\ud574\uc838 \ubc84\ub9ac\ub294 \ud604\uc0c1\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ubb3c\ub860 \ub208\uc5d0 \ud655 \ub728\uc77c \uc815\ub3c4\ub85c \uc2ec\ud558\uc9c0\ub294 \uc54a\uc9c0\ub9cc, \uc124\uacc4\uc640 \uac19\uc774 \ubbf8\uc138\ud55c \uace1\uc120 \ubcc0\ud654\uac00 \uc911\uc694\ud55c \uacbd\uc6b0\uc5d0\ub294 \ubb38\uc82f\uac70\ub9ac\uac00 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br \/>\n&nbsp;<\/p>\n<p><strong>5. Hermite interpolation<\/strong><\/p>\n<p>\uc5ec\uae30\uc11c \uc7a0\uae50 \ud55c\uac00\uc9c0 \ubcf5\uc7a1\ud55c \uacf5\uc2dd\uc744 \uc18c\uac1c\ud558\uc790\uba74<\/p>\n<p><strong>p=p(u)= p0 (1- 3u2 + 2u3 )+ p1(3u2 &#8211; 2u3 )+ p0&#8242; (u- 2u2 + u3 )+ p1&#8242; (- u2 + u3 )<\/strong><\/p>\n<p>\uc774\uac83\uc774 \ubc14\ub85c The solution of cubic polynomial curves (3\ucc28 \uace1\uc120\uc2dd\uc758 \ud574)\ub85c\uc368 \uc774 \uacf5\uc2dd\uc744 HERMITE INTERPOLATION(\ud5c8\ub9c8\uc774\ud2b8 \ubcf4\uac04\ubc95)\uc774\ub77c \ud569\ub2c8\ub2e4. \uc774 \uc2dd\uc744 \uc544\uc8fc \uac04\ub2e8\ud788 \uc124\uba85\ud558\uc790\uba74 \ub450 \uc810\uacfc \uadf8 \uc810\uc5d0\uc11c\uc758 \uae30\uc6b8\uae30\ub97c \ub9cc\uc871\ud558\ub294 \uc0bc\ucc28\uace1\uc120\uc5d0 \uad00\ud55c \ud574\ubc95\uc774\uba70, \uc5ec\uae30\uc5d0\uc11c u\uc758 \uac12\uc740 0\uacfc 1 \uc0ac\uc774\uc785\ub2c8\ub2e4. \uc5ec\uae30\uc5d0\uc11c p0, p1, p0&#8242;, p1&#8242; \uac12\uc774 \uc5b4\ub5bb\uac8c \ub418\ub294\uac00\uc5d0 \ub530\ub77c\uc11c \uc774 \uacf5\uc2dd\uc73c\ub85c \uc5b4\ub5a4 \uace1\uc120\uc774 \ub9cc\ub4e4\uc5b4\uc9c0\ub294\uac00\uac00 \uacb0\uc815\ub429\ub2c8\ub2e4.\u00a0<strong>\uc774\ub7ec\ud55c \ud568\uc218\ub97c \ube14\ub80c\ub529 \ud568\uc218(blending function)\ub77c\uace0 \ud558\uace0 \uc774\uac83\uc744 \uc751\uc6a9\ud558\uc5ec \uc5b4\ub5a4 \uace1\uc120\ub3c4 \ud45c\ud604\uc774 \uac00\ub2a5\ud574 \uc84c\uc2b5\ub2c8\ub2e4.<\/strong><br \/>\n\uc54c\ub2e4\uc2dc\ud53c \uc774\ub7f0 \uace1\uba74\uc5d0 \ub300\ud55c \ud568\uc218\ub294 \ubc29\uc815\uc2dd\uc73c\ub85c \ud45c\ud604\uc774 \ub418\ub294\ub370 1\ucc28 \ubc29\uc815\uc2dd\uc73c\ub85c\ub294 \uc9c1\uc120\uc774 \ud45c\ud604\ub418\uba70, 2\ucc28 \ubc29\uc815\uc2dd\uc73c\ub85c\ub294 \ud3ec\ubb3c\uc120\uc774 \ud45c\ud604\ub429\ub2c8\ub2e4. 3\ucc28 \ubc29\uc815\uc2dd\uc744 \uc0ac\uc6a9\ud558\uba74 \ud3ec\ubb3c\uc120\uc758 \ubc18\ucabd\uc744 \uaebe\uc5b4 \ub0b4\ub9b0 \ub4ef\ud55c \ubaa8\uc591\uc774 \ub418\ub294\ub370, \uc774 3\ucc28 \ubc29\uc815\uc2dd\uc5d0\uc11c \ub098\uc624\ub294 \uace1\uc120 \ubaa8\uc591\uc774 \ubcf4\ud1b5 BEZIER\ub098 B-\uc2a4\ud50c\ub77c\uc778\uc5d0\uc11c \ud45c\ud604\ud558\ub294 \uace1\uc120 \ud615\ud0dc\uc785\ub2c8\ub2e4. \uace7, \uc774\ub7f0 \ud615\ud0dc\uc758 \uace1\uc120\uc744 \uae30\ubcf8 \ub2e8\uc704\uc778 \ud328\uce58(pach)\ub85c \ubcf4\uace0 \ud328\uce58\ub97c \uc5ec\ub7ec \uac1c \uc774\uc5b4\uc11c \uc6d0\ud558\ub294 \uace1\uc120\uc744 \ub9cc\ub4dc\ub294 \uac83\uc785\ub2c8\ub2e4. \ubb3c\ub860 \ud568\uc218\ub294 x\uac12 \ud558\ub098\uc5d0 \ub300\ud558\uc5ec y\uac12\uc774 \ud558\ub098\ubc16\uc5d0 \uc874\uc7ac\ud560 \uc218 \uc5c6\ub294 \ub370 \ube44\ud558\uc5ec \uace1\uc120\uc740 \uadf8\ub807\uc9c0 \uc54a\uc73c\ubbc0\ub85c \uace1\uc120\uc744 \uacc4\uc0b0\ud558\ub294 \ubc29\uc815\uc2dd\uc5d0\uc11c\ub294 \ubcf4\ud1b5 \uc22b\uc790\uac00 \uc544\ub2cc, \ubc29\ud5a5\uc774 \uc788\ub294 \ubca1\ud130 \uac12\uc744 \uc501\ub2c8\ub2e4.<\/p>\n<p>\uc5ec\ud0dc\uae4c\uc9c0 \uc124\uba85\ud55c \ub0b4\uc6a9\uc740 \uc804\uacf5\uc790\uac00 \uc544\ub2c8\uba74 \ubb34\uc2a8 \uc18c\ub9ac\ud558\ub294\uc9c0 \ubaa8\ub974\uc2e4 \uac81\ub2c8\ub2e4.(\ub2e4\uc2dc \ud55c \ubc88 \ubc1d\ud788\uc9c0\ub9cc \uc800\ub3c4 \uc798 \ubaa8\ub985\ub2c8\ub2e4. -_-) \uadf8\ub798\uc11c \uc544\uc8fc \uc54c\uae30 \uc27d\uac8c \uc815\ub9ac\ub97c \ud558\uc790\uba74, 3\ucc28\uc6d0 \ubaa8\ub378\ub9c1\uc5d0\uc11c\ub294 \ub2e8\uc77c \ud3c9\uba74\uc0c1\uc5d0 \uc788\uc9c0 \uc54a\uc740 \uace1\uc120\uc744 \ub098\ud0c0\ub0b4\uba74\uc11c\ub3c4 \uacc4\uc0b0\ud558\uae30 \uc5b4\ub835\uc9c0 \uc54a\uace0 \ub610 \uace0\ucc28 \ub2e4\ud56d\uc2dd\uc744 \uc0ac\uc6a9\ud560 \ub54c \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \uc6d0\uce58 \uc54a\ub294 \uc9c4\ub3d9(undulations)\uc744 \ud53c\ud560 \uc218 \uc788\ub294 \ud45c\ud604 \ubc29\ubc95\uc774 \ud544\uc694\ud558\ub2e4. \uc774\ub294 \uc0bc\ucc28 \ub2e4\ud56d\uc2dd(cubic polynomial, \ub3d9\uc77c \ud3c9\uba74\uc0c1\uc5d0 \uc788\uc9c0 \uc54a\ub294 \uace1\uc120\uc758 \ud45c\ud604\uc744 \uc704\ud55c \ucd5c\uc18c \ucc28\uc218)\uc744 \uc0ac\uc6a9\ud558\uba74 \ud574\uacb0\uc774 \ub418\ub294\ub370 \uadf8\uac83\uc744 \ud574\uacb0\ud558\ub294 \uacf5\uc2dd\uc774 \ubc14\ub85c HERMITE INTERPOLATION\uc774\uba70 \uc774\ub97c \uc774\uc6a9\ud574 \ud604\uc7ac \uc6b0\ub9ac\uac00 \ucef4\ud4e8\ud130 \uadf8\ub798\ud53d\uc5d0\uc11c \uc4f0\uc774\ub294 \uac01\uc885 CURVE\ub4e4\uc774 \ub9cc\ub4e4\uc5b4\uc84c\ub2e4&#8230;.\ub77c\uace0\ub9cc \uc544\uc2dc\uba74 \ub429\ub2c8\ub2e4. \uc65c \uace8\uce58 \uc544\ud504\uac8c \uc774\ub7f0\uac70 \ud558\ub098 \ud558\ub098 \uc5b8\uae09\ud558\ub0d0\uba74 \uc774\uac83\uc744 \ud1a0\ub300\ub85c \uac01\uc885 \uace1\uc120\uc774 \ub098\uc654\uc73c\uba70 \uadf8 \uace1\uc120\uc758 \ucd5c\uc2e0\ud615\uc774\uc790 \uc644\uacb0\ud615\uc774 \ubc14\ub85c NURBS\uc774\uae30 \ub54c\ubb38\uc774\uc9c0\uc694. \uc554\ud2bc \uc774\uac83\uc744 \ud1a0\ub300\ub85c \ud604\uc7ac \uc6b0\ub9ac\uac00 \uc4f0\ub294 BEZIER CURVE, CARDINAL SPLINE, B-SPLINE, NURBS\uac00 \ud0c4\uc0dd\ud558\uc600\uc73c\ub2c8 \uc774\uc81c \uc774\uac83\ub4e4\uc5d0 \ub300\ud574 \ud558\ub098\uc529 \ub610 \ubcf4\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>6. BEZIER CURVE<\/strong><\/p>\n<p>HERMITE INTERPOLATION\uc744 \uc751\uc6a9\ud55c \uccab SPLINE\uc774 \ubc14\ub85c BEZIER CURVE\uc785\ub2c8\ub2e4. \uc55e\uc5d0 \uc18c\uac1c\ud55c Hermite Interpolation\uc740 \uc0ac\uc2e4 \uc0ac\uc6a9\uc790\uac00 \ub300\ud654\ud615 \uc124\uacc4\ub97c \uc9c4\ud589\ud558\uae30\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc740\ub370, \uadf8 \uc774\uc720\ub294<br \/>\n(i)\uc6d0\ud558\ub294 \ud615\uc0c1\uc744 \uc790\uc720\uc790\uc7ac\ub85c \uc0dd\uc131\ud558\ub294\ub370\ub294 \ubd80\uc801\uc808\ud558\uba70,<br \/>\n(ii) P0&#8242;, P1&#8217;\uc758 \ud06c\uae30\ubcc0\ud654\uc5d0 \uc758\ud55c \uace1\uc120\ud615\uc0c1\uc758 \ubcc0\ud654\uac00 \uc77c\ubc18\uc778\uc758 \uc9c1\uad00\uacfc \uc644\uc804\ud788 \uc77c\uce58\ud558\uc9c0\ub294 \uc54a\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4<\/p>\n<p>\uc774\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574 \uac1c\ubc1c\ub41c \uac83\uc774 Bezier \uace1\uc120\uc73c\ub85c, 60\ub144\ub300\ucd08 \ud504\ub791\uc2a4 \ub974\ub178 \uc790\ub3d9\ucc28\uc758 Bezier\uac00 \uc81c\uc548 \ud558\uc600\uc2b5\ub2c8\ub2e4. \uac1c\ubc1c\uc790\uc758 \uc774\ub984\uc744 \ub534 Bezier \ucee4\ube0c\ub294 \ubaa8\ub4e0 \ucee8\ud2b8\ub864 \ud3ec\uc778\ud2b8\ub4e4\uc744 \ud1b5\uacfc\ud558\uc9c0\ub9cc \uac01\uac01\uc758 \ucee8\ud2b8\ub864 \ud3ec\uc778\ud2b8\ub9c8\ub2e4 tangent vector\ub77c\uace0 \ud558\ub294 \ubc29\ud5a5\uacfc \uae38\uc774\ub97c \ub3d9\uc2dc\uc5d0 \ud45c\uc2dc\ud558\ub294 \uc870\uc808\uc120\uc744 \uac00\uc9d1\ub2c8\ub2e4. \ud2b9\uc815\ud55c \ucee8\ud2b8\ub864 \ud3ec\uc778\ud2b8\uc5d0\uc11c \uadf8 \ucee4\ube0c\ub97c \uc2a4\uce58\uace0 \uc9c0\ub098\uac00\ub294 \uc774 \uc811\uc120(tangent)\uc758 \ubc29\ud5a5\uacfc \uae38\uc774(vector)\ub294 \uac01\uac01 \uadf8 \uc2a4\ud50c\ub77c\uc778 \ucee4\ube0c\uc758 &#8220;\uace1\ub960 \ubc29\ud5a5&#8221; \ubc0f tangent vector\uc5d0 \uc758\ud574 &#8220;\uc601\ud5a5\uc744 \ubc1b\ub294 \ubc94\uc704&#8221;\ub97c \ub098\ud0c0\ub0b4\uc9c0\uc694. \ud754\ud788 \uc6b0\ub9ac\uac00 \uc798 \uc54c\uace0 \uc788\ub294 2D \ubca1\ud130 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc778 ADOBE ILLUSTRATOR\uc5d0\uc11c \uc4f0\uc774\ub294 \ucee4\ube0c\uac00 \ubc14\ub85c \uc774 \ubca0\uc9c0\uc5b4 \ucee4\ube0c\uc774\uba70 3D\uc5d0\uc11c\ub3c4 \uc4f0\uc785\ub2c8\ub2e4.<\/p>\n<div>\n<p><span class=\"imageblock\"><a style=\"color: #2b2824;\" href=\"http:\/\/fazz.tistory.com\/m\/post\/98\/slideshow?order=3\"><img decoding=\"async\" class=\"item_image able_slideshow\" src=\"http:\/\/i1.daumcdn.net\/thumb\/R750x0\/?fname=http%3A%2F%2Fcfs2.tistory.com%2Fupload_control%2Fdownload.blog%3Ffhandle%3DYmxvZzM5NTQxQGZzMi50aXN0b3J5LmNvbTovYXR0YWNoLzEvMTEzLmpwZw%253D%253D%26filename%3D003.jpg\" alt=\"\uc774\ubbf8\uc9c0\" \/><\/a><\/span><\/p>\n<\/div>\n<p align=\"center\">(\uadf8\ub9bc3. BEZIER CURVE\uc758 \uad6c\uc131)<\/p>\n<p>\uc774 \uace1\uc120\uc758 \ud2b9\uc9d5\uc740 \uccab \uc810\uacfc \ub05d\uc810\uc774 \ubc18\ub4dc\uc2dc \uace1\uc120 \uc548\uc5d0 \uc788\uc73c\uba70, \ub450 \ucee8\ud2b8\ub864 \ud3ec\uc778\ud2b8\ub294 \uc5b8\uc81c\ub098 \uc774 \uace1\uc120\uc744 \ub9e4\ub044\ub7fd\uac8c \ud574\uc8fc\ub294 \ud6a8\uacfc\ub97c \uac16\ub294\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc0ac\uc6a9\uc790\uac00 \uadf8\ub798\ud53d \uc778\ud130\ud398\uc774\uc2a4\ub97c \ud1b5\ud558\uc5ec \uc27d\uac8c \uace1\uc120\uc744 \ud45c\ud604\ud560 \uc218 \uc788\uc73c\uba70, \ud56d\uc0c1 \ub9e4\ub044\ub7fd\uace0 \uc815\ud655\ud55c \uace1\uc120\uc744 \uadf8\ub824\ub0b4\ub294 \uc7a5\uc810\uc744 \uac16\uac8c \ub418\ub294 \uac83\uc785\ub2c8\ub2e4.\ud558\uc9c0\ub9cc\u00a0Bezier Curve\uc758 \uacbd\uc6b0 \uc77c\ubc18\uc801\uc778 \ubc29\uc815\uc2dd\uc774 x\uc640 y\uc5d0 \uad00\ud55c \uc2dd\uc774 \uc544\ub2cc t\uc5d0 \uad00\ud55c \uc2dd\uc73c\ub85c \uc815\ub9ac\ub418\uba70(\uc790\uc138\ud55c \uac83\uc740 \uc0dd\ub7b5\ud558\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4. \uc5b4\uc9dc\ud53c \uc804\ubb38\uac00\ub9cc \uc774\ud574\ud558\ub294 \uc218\uc900\uc774\uace0 \uc6b0\ub9ac\uac00 \uc774\uac70\uc5d0 \ub300\ud574 \uae4c\uc9c0 \uc54c \uc218\ub294 \uc5c6\uc73c\ub2c8\uae4c\uc694)\u00a0 \ucc98\uc74c\uacfc \ub9c8\uc9c0\ub9c9 \uc810\uc744 \uc81c\uc678\ud558\uba74 \uacf5\uac04\uc0c1\uc758 \uc810\uc744 \ud1b5\uacfc\ud558\uc9c0 \uc54a\uace0 \uadfc\uc0ac\uc801\uc73c\ub85c \ub098\ud0c0\ub0b4\uac8c \ub429\ub2c8\ub2e4. \ub610\ud55c global modification (\uc804\uc5ed \uc870\uc815)\ub9cc \uac00\ub2a5\ud558\ub2e4\ub294 \uc81c\uc57d\uc774 \uc788\uc2b5\ub2c8\ub2e4.\u00a0 \ub2e4\uc2dc \ub9d0\ud558\uba74, \ube14\ub80c\ub529 \ud568\uc218\uac00 0&lt;u&lt;1 \uc758 \uc804 \uc601\uc5ed\uc5d0\uc11c 0\uc774 \uc544\ub2cc \uac12\uc744 \uac00\uc9c0\uac8c \ub418\ubbc0\ub85c\u00a0 \uc870\uc815\ub2e4\uac01\ud615\uc758 \uc870\uc815\uc810 \uc911 \ud558\ub098\ub77c\ub3c4 \uc6c0\uc9c1\uc774\uac8c \ub418\uba74 \uace1\uc120\uc758 \ubaa8\ub4e0 \uc704\uce58\uac00 \uc601\ud5a5\uc744 \ubc1b\uac8c \ub418\uba70, \uc6d0\ud558\ub294 \uc815\uc810\uc744 \uc9c0\ub098\uac8c \ud558\uae30 \uc5b4\ub824\uc6b4 \ub2e8\uc810\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>7. Cubic spline curves (\uc0bc\ucc28 \uc2a4\ud50c\ub77c\uc778 \uace1\uc120)<\/strong><\/p>\n<p>\uc810\ub4e4\uc744 \ubcf4\uac04\ud558\ub294 \uacbd\uc6b0, \uc5ec\ub7ec \uac1c\uc758 \uace1\uc120 segment(\uc870\uac01)\uc744 \uc774\uc5b4\uc11c \ubcf5\ud569\uace1\uc120(composite curve)\uc744 \ud615\uc131\ud558\uac8c \ub429\ub2c8\ub2e4. \uacf5\uac04\uc0c1\uc758 \uace1\uc120\uc744 \uc815\uc758\ud558\ub294 \ucd5c\uc18c \ucc28\uc218\uc758 \ub2e4\ud56d\uc2dd\uc740 3\ucc28\uace1\uc120\uc774\ubbc0\ub85c, \uc5ec\ub7ec \uac1c\uc758 Hermite curve\ub97c \uc774\uc5b4\uc11c \uc801\uc808\ud55c \ubcf5\ud569 \uace1\uc120\uc744 \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc0ac\uc6a9\uc790\uc5d0\uac8c \uac01 \uc810\uc758 \uc811\uc120 \ubca1\ud130\uac12\uc744 \uc785\ub825\ud558\ub3c4\ub85d \ud558\ub294 \uac83\uc740 \uc2e4\uc81c\ub85c\ub294 \ub108\ubb34 \ubd88\ud3b8\ud558\ubbc0\ub85c \uace1\uc120\uc758 \uc911\uac04 \uc810\uc5d0\uc11c 1\ucc28 \ubc0f 2\ucc28 \ubbf8\ubd84 \uc5f0\uc18d\uc870\uac74\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \ubcf4\ud3b8\uc801\uc774\ub77c \ud558\ub294\uad70\uc694. \uc774\ub807\uac8c \ub9cc\ub4e4\uc5b4\uc9c4 \uace1\uc120\uc744 2\ucc28 \ubbf8\ubd84 \uc5f0\uc18d\uc758 Cubic spline curves(3\ucc28 \uc2a4\ud50c\ub77c\uc778 \uace1\uc120)\ub77c \ud569\ub2c8\ub2e4.<\/p>\n<div>\n<p><span class=\"imageblock\"><a style=\"color: #2b2824;\" href=\"http:\/\/fazz.tistory.com\/m\/post\/98\/slideshow?order=4\"><img decoding=\"async\" class=\"item_image able_slideshow\" src=\"http:\/\/i1.daumcdn.net\/thumb\/R750x0\/?fname=http%3A%2F%2Fcfs3.tistory.com%2Fupload_control%2Fdownload.blog%3Ffhandle%3DYmxvZzM5NTQxQGZzMy50aXN0b3J5LmNvbTovYXR0YWNoLzAvODcuanBn%26filename%3D004.jpg\" alt=\"\uc774\ubbf8\uc9c0\" \/><\/a><\/span><\/p>\n<\/div>\n<p align=\"center\">(\uadf8\ub9bc4. Cubic spline curves)<\/p>\n<p><strong>8. CARDINAL SPLINE<\/strong><\/p>\n<p>Cardinal spline\uc740 \uac01 curves\ub4e4\uc774 \ud569\uccd0\uc838 \ud070 curve\ub97c \uc774\ub8ec \uac83\uc744 \ub9d0\ud569\ub2c8\ub2e4. \uc774 Cardinal spline\uc740 \uac01 points\uc640 tension parameter\uc5d0 \uc758\ud574 \ud2b9\ud654\ub418\ub294\ub370 \uc120\uc744 \uad6c\uc131\ud558\ub294 \ubaa8\ub4e0 \ucee8\ud2b8\ub864 \ud3ec\uc778\ud2b8\ub4e4\uc744 \ud1b5\uacfc\ud558\ub294 SPLINE CURVE\uc778 \uac83\uc774\uc8e0.<br \/>\n\uce74\ub514\ub110 \uc2a4\ud50c\ub77c\uc778\uc758 \uc7a5\uc810\uc740 \ucee8\ud2b8\ub864\ud3ec\uc778\ud2b8\uc758 \uc704\uce58\uc640 \ucee4\ube0c\uac00 \uadf8\ub9ac\ub294 \uada4\uc801\uc758 \uc9c1\uc811\uc801\uc778 \uc0c1\uad00\uad00\uacc4\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. \ud2b9\uc815\ud55c \uc9c0\uc810\uc744 \uc9c0\ub098\ub294 \ucee4\ube0c\ub97c \uadf8\ub9ac\uae30 \uc704\ud574\uc11c\ub294 \ucee8\ud2b8\ub864\ud3ec\uc778\ud2b8\ub97c \uac04\ub2e8\ud788 &#8220;\uadf8\uacf3&#8221;\uc5d0 \uc704\uce58\uc2dc\ud0a4\uba74 \ub429\ub2c8\ub2e4.<\/p>\n<div><\/div>\n<div>\n<p><span class=\"imageblock\"><a style=\"color: #2b2824;\" href=\"http:\/\/fazz.tistory.com\/m\/post\/98\/slideshow?order=5\"><img decoding=\"async\" class=\"item_image able_slideshow\" src=\"http:\/\/i1.daumcdn.net\/thumb\/R750x0\/?fname=http%3A%2F%2Fcfs2.tistory.com%2Fupload_control%2Fdownload.blog%3Ffhandle%3DYmxvZzM5NTQxQGZzMi50aXN0b3J5LmNvbTovYXR0YWNoLzEvMTE0LmdpZg%253D%253D%26filename%3D005.gif\" alt=\"\uc774\ubbf8\uc9c0\" \/><\/a><\/span><br \/>\n<span class=\"imageblock\"><a style=\"color: #2b2824;\" href=\"http:\/\/fazz.tistory.com\/m\/post\/98\/slideshow?order=6\"><img decoding=\"async\" class=\"item_image able_slideshow\" src=\"http:\/\/i1.daumcdn.net\/thumb\/R750x0\/?fname=http%3A%2F%2Fcfs3.tistory.com%2Fupload_control%2Fdownload.blog%3Ffhandle%3DYmxvZzM5NTQxQGZzMy50aXN0b3J5LmNvbTovYXR0YWNoLzAvODguZ2lm%26filename%3D006.gif\" alt=\"\uc774\ubbf8\uc9c0\" \/><\/a><\/span><\/p>\n<\/div>\n<p align=\"center\">(\uadf8\ub9bc5. CARDINAL SPLINE\uacfc TENSION\uac12\uc5d0 \uc758\ud55c \uace1\ub960 \ud45c\ud604 \ubc29\ubc95)<\/p>\n<p align=\"left\">\uc774\ub7ec\ud55c \ubc29\uc2dd\uc758 \uc7a5\uc810\uc740 point \uc758 \uc704\uce58\uc5d0 curve \uac00 \ub9cc\ub4e4\uc5b4 \uc9c0\ub294 \uc9c1\uc811\uc801\uc778 \uad00\uacc4\ub97c \uac00\uc9c0\uace0 \uc788\uae30 \ub54c\ubb38\uc5d0 \ub9cc\uc57d curve \uac00 \uc704\uce58\ud558\uace0\uc790 \uc6d0\ud558\ub294 \uc9c0\uc810\uc774 \uc788\ub2e4\uba74 \uadf8\uacf3\uc5d0 point \ub97c \uc704\uce58\uc2dc\ud0a4\uba74 \ub429\ub2c8\ub2e4. \ubc18\uba74\uc5d0 \uc774\ub7ec\ud55c \uc9c1\uc811\uc801\uc778 \uad00\uacc4\uc758 \ub2e8\uc810\uc740 \uadf8\uac83\uc774 \ubd80\ub4dc\ub7fd\uace0 \uc810\uc9c4\uc801\uc778 \uace1\ub960\uc758 curve\ub97c \ub9cc\ub4dc\ub294\ub370 \uc788\uc5b4\uc11c \ubb38\uc81c\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub9cc\uc57d control point\uc758 \uc704\uce58\uac00 \uc870\uae08\uc774\ub77c\uace0 \uc798\ubabb \ub193\uc778\ub2e4\uba74 curve\ub294 \uc815\ud655\ud788 \uc798\ubabb \ub193\uc778 \uc704\uce58\ub97c \ud1b5\uacfc\ud558\uba74\uc11c \ub2e4\uc74c \uadf8\ub9bc\uc5d0\uc11c \ubcf4\uc5ec \uc9c0\ub294 \uac83\uacfc \uac19\uc774 \uc870\uae08 \ud280\ub294 \ub4ef\ud55c \ubd80\ub4dc\ub7fd\uc9c0 \ubabb\ud55c \ubaa8\uc591\uc744 \uac00\uc9c0\uac8c \ub429\ub2c8\ub2e4. ALIAS 1.0\uc5d0\uc11c\ub294 \uc774 CARDINAL SPLINE\uc744 \uac00\uc9c0\uace0 \ubaa8\ub378\ub9c1\uc744 \ud588\uc2b5\ub2c8\ub2e4.<\/p>\n<p>&nbsp;<\/p>\n<p><span class=\"imageblock\"><a style=\"color: #2b2824;\" href=\"http:\/\/fazz.tistory.com\/m\/post\/98\/slideshow?order=7\"><img decoding=\"async\" class=\"item_image able_slideshow\" src=\"http:\/\/i1.daumcdn.net\/thumb\/R750x0\/?fname=http%3A%2F%2Fcfile9.uf.tistory.com%2Fimage%2F122E1E4D4F802E5D02A281\" alt=\"\uc774\ubbf8\uc9c0\" \/><\/a><\/span><br \/>\n(\uadf8\ub9bc6. CONTROL POINT\uac00 \uc798\ubabb \uc704\uce58\ud560 \uacbd\uc6b0 \uc704 \uadf8\ub9bc\ucc98\ub7fc \uace1\uc11d\uc774 \uc870\uae08 \ud280\uac8c \ub41c\ub2e4.)<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<br \/>\n<strong>9. B- SPLINE<\/strong><\/p>\n<p>Spline\uc758 \uace1\ub960\uc744 \uc870\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ud06c\uac8c \ub450 \uac00\uc9c0\ub85c \ub098\ub20c \uc218 \uc788\ub294\ub370 control point\uac00 curve\uc758 \uc704\uc5d0 \uc874\uc7ac\ud558\ub294 interpolating splines \ubc29\uc2dd\uacfc(Bezier curve, Cardinal spline)\u00a0 \ub450 \ubc88\uc9f8 \ud615\ud0dc\ub294 curve\uc758 \uadfc\ucc98\uc5d0 \ub193\uc774\uae30\ub294 \ud558\uc9c0\ub9cc \uc9c1\uc811\uc801\uc73c\ub85c control point\uac00 curve\uc758 \uc704\uc5d0\ub294 \ub193\uc774\uc9c0 \uc54a\ub294 approximating spline\uc758 \ud615\ud0dc\uc785\ub2c8\ub2e4. Control point\uac00 \uace1\uc120 \uc704\uc5d0 \uc788\ub294 Bezier curve, Cardinal spline\uc758 \uacbd\uc6b0,\u00a0 \ud328\uce58 \ud558\ub098\ub97c \uad6c\uc131\ud558\ub294 \uc810 \uac00\uc6b4\ub370 \uc5b4\ub5a4 \uac83\uc744 \uc6c0\uc9c1\uc5ec\ub3c4 \uace1\uc120\uc774 \uc804\uccb4\uc801\uc73c\ub85c \ubcc0\ud55c\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4. Adobe Illustrator\uc640 \uac19\uc740 \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c \uace1\uc120 \ud55c \uc870\uac01\uc744 \uadf8\ub9ac\uace0 \uad00\ub828\ub41c \ub124 \uc810 \uac00\uc6b4\ub370 \uc5b4\ub5a4 \uac83\uc744 \uc6c0\uc9c1\uc5ec\ub3c4 \uc804\uccb4 \ubaa8\uc591\uc774 \ubcc0\ud569\ub2c8\ub2e4. \uace7, \ud3b8\uc9d1 \uacfc\uc815\uc5d0\uc11c \uace1\uc120 \uac00\uc6b4\ub370 \uc77c\ubd80 \ud615\uc0c1\ub9cc \ubc14\uafb8\uace0 \uc2f6\uc5b4\ub3c4 \uc804\uccb4\uc801\uc73c\ub85c \ubc88\uac70\ub86d\uac8c \ub9e4\ub9cc\uc838 \uc918\uc57c \ud55c\ub2e4\ub294 \ubb38\uc81c\uc810\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uac70\uae30\uc5d0\ub2e4\uac00 \uc870\uc815\uc810\uc758 \uac1c\uc218\uc640 \uace1\uc120\uc2dd\uc758 \ucc28\uc218\uac00 \uc9c1\uacb0\ub418\uc5b4 \uadfc\uc0ac\uc801\uc73c\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\ub294 \uc810\uc758 \uc218\uc5d0 \uc5b4\ub290 \uc815\ub3c4 \uc81c\uc57d\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubb38\uc81c\uc810\uc744 \ud574\uacb0\ud558\uae30 \uc704\ud558\uc5ec \ub4dc\ubcf4\uc5b4(de Boor), \ucf55\uc2a4(Cox)\uac00 \uc81c\uc548\ud55c \ubc29\ubc95\uc774 B-spline(\ubca0\uc9c0\uc5b4-\uc2a4\ud50c\ub77c\uc778) \uace1\uc120\uc785\ub2c8\ub2e4. B-spline\uc758 \uacbd\uc6b0\ub294\u00a0BEZIER CURVE\ub098 Cardinal Spline\uac19\uc774 \uace1\uba74\uc744 \uc870\uc808\ud558\ubbc4 control point\uac00 spline\uc704\uc5d0 \uc874\uc7ac\ud558\uc9c0 \uc54a\uace0, curve\uc758 \uadfc\ucc98\uc5d0 \ub193\uc774\uae30\ub294 \ud558\uc9c0\ub9cc \uc9c1\uc811\uc801\uc73c\ub85c control point\uac00 curve\uc758 \uc704\uc5d0\ub294 \ub193\uc774\uc9c0 \uc54a\ub294 approximating spline\uc758 \ud615\ud0dc\ub97c \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.\u00a0approximating spline\uc758 \uacbd\uc6b0\ub294 \uc5b4\ub290 \uc815\ub3c4 \uc798\ubabb\ub41c \uc704\uce58\uc758 point \uc5d0\ub3c4 \ubd80\ub4dc\ub7ec\uc6b4 curve\ub97c \uacc4\uc0b0\ud560 \uc218 \uc788\uc5b4 \uac01 \uc810\uc774 \uc77c\uc815\ud55c \ubc94\uc704\uc5d0\ub9cc \uc601\ud5a5\uc744 \ubbf8\uce58\uae30 \ub54c\ubb38\uc5d0 \uc804\uccb4\uc801\uc73c\ub85c \ubaa8\uc591\uc744 \ubc14\uafb8\uc9c0 \uc54a\uace0 \uc6d0\ud558\ub294 \ubd80\ubd84\ub9cc \uc870\uc808\ud574 \uc904 \uc218 \uc788\ub294 \uc7a5\uc810\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c approximating spline \ud615\ud0dc\ub97c \ucc98\uc74c \uc0ac\uc6a9\ud55c \uac83\uc774 B-spline \uc778\uac83\uc774\uc8e0.<\/p>\n<div>\n<p><span class=\"imageblock\"><a style=\"color: #2b2824;\" href=\"http:\/\/fazz.tistory.com\/m\/post\/98\/slideshow?order=8\"><img decoding=\"async\" class=\"item_image able_slideshow\" src=\"http:\/\/i1.daumcdn.net\/thumb\/R750x0\/?fname=http%3A%2F%2Fcfs2.tistory.com%2Fupload_control%2Fdownload.blog%3Ffhandle%3DYmxvZzM5NTQxQGZzMi50aXN0b3J5LmNvbTovYXR0YWNoLzEvMTE1LmpwZw%253D%253D%26filename%3D007.jpg\" alt=\"\uc774\ubbf8\uc9c0\" \/><\/a><\/span><\/p>\n<\/div>\n<div>(\uadf8\ub9bc7. B-SPLINE\uc758 \ub3c4\uc2dd)<\/div>\n<p>\uc704 \uadf8\ub9bc 7\uc744 \uc0b4\ud3b4 \ubd05\uc2dc\ub2e4. \uc774 \uadf8\ub9bc\uc740 \uc2dc\uc791\uc810\uacfc \ub05d\uc810, \ub124 \uac1c\uc758 \uc870\uc815\uc810\uc73c\ub85c \uc774\ub8e8\uc5b4\uc9c4 B-SPLINE \uace1\uc120\uc778\ub370, \ubca0\uc9c0\uc5b4 \uc5ed\uc2dc\ub3c4 \uc774\ub860\ub9cc \uac00\uc9c0\uace0 \ub530\uc838 \ubcf4\uba74 \uc870\uc815\uc810\uc744 \ub450 \uac1c\ubcf4\ub2e4 \ub9ce\uc774 \uac00\uc9c8 \uc218\ub294 \uc788\uc9c0\ub9cc \uc55e\uc5d0\uc11c \ub9d0\ud588\ub358 \uac83\ucc98\ub7fc \uadf8 \uac00\uc6b4\ub370 \ub2e8 \ud55c \uac1c\uc758 \uc810\ub9cc \uc6c0\uc9c1\uc5ec\ub3c4 \uace1\uc120 \uc804\uccb4\uac00 \ubcc0\ud558\uae30 \ub54c\ubb38\uc5d0 \ucd5c\uc18c \uc22b\uc790\uc778 \ub450 \uac1c\ub9cc\uc744 \uc4f0\ub294\ub370 \ubc18\ud574 B-SPLINE\uc740 \uc5ec\ub7ec \uac1c\uc758 \uc870\uc815\uc810\uc744 \uac00\uc838\ub3c4 \uac01\uac01\uc774 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uad6c\uac04\uc774 \uc81c\ud55c\ub418\uc5b4 \uc788\uae30 \ub54c\ubb38\uc5d0 \uc5ec\ub7ec \uc870\uc815\uc810\uc744 \ud55c \ud328\uce58\uc5d0 \ud55c\uaebc\ubc88\uc5d0 \uc4f0\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \ub610\ud55c \uc2dc\uc791\uc810\uacfc \ub05d\uc810\uc774 \uace1\uc120 \uc704\uc5d0 \uc788\ub294 \ubca0\uc9c0\uc5b4\uc640\ub294 \ub2ec\ub9ac B-SPLINE\uc740 V0\uc640 V5\uac00 \uc810 \uc704\uc5d0 \uc788\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uadf8\ub807\ub2e4\uace0 \ubc18\ub4dc\uc2dc \ub5a8\uc5b4\uc838 \uc788\ub294 \uac83\uc740 \uc544\ub2c8\uba70 \uc801\uc808\ud55c \ubc29\ubc95\uc73c\ub85c \uc2dc\uc791\uc810\uacfc \ub05d\uc810\uc774 \uace1\uc120 \uc704\uc5d0 \uc788\ub3c4\ub85d \ub9cc\ub4e4 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uc815\ud655\ud558\uac8c \ub9d0\ud558\uba74 B-SPLINE\uc740 \ubca0\uc9c0\uc5b4\ub97c \ud3ec\ud568\ud558\uace0 \uc788\uc73c\uba70, B-SPLINE \uace1\uc120\uc744 \ud2b9\uc815\ud55c \ud615\ud0dc\ub85c \uc81c\ud55c\ud574 \ubcf4\uba74 \ubca0\uc9c0\uc5b4\uc640 \uac19\uc740 \ud2b9\uc131\uc744 \uac16\uac8c \ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uc774 B-SPLINE\uc740 NURBS\uac00 \ub098\uc624\uae30 \uc774\uc804\uc5d0 CG\uc5d0\uc11c\uad6c\ud604\ub418\ub294 \ucd5c\uac15\uc758 SPLINE\uc774\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n<p align=\"left\"><strong>10. NURBS<\/strong><\/p>\n<p>\uc790 \ub4dc\ub514\uc5b4 \ub119\uc2a4\uae4c\uc9c0 \uc654\uc2b5\ub2c8\ub2e4. \uc774\uac83\uc744 \uc124\uba85\ud558\uae30 \uc704\ud574 \uc55e\uc5d0 \uc5ec\ub7ec \uace1\uc120\uacfc \uac04\ub2e8\ud558\uc9c0\ub9cc \ubb34\ucc99 \uba38\ub9ac \uc544\ud508 \uacf5\uc2dd\uc774 \uc124\uba85\ub418\uc5c8\uc5b4\uc57c \ud588\uc9c0\uc694. \uadf8\ub798\uc57c \ud588\ub358 \uc774\uc720\ub294? NURBS\uac00 \uadf8 \uc5b4\ub5a4 SPILINE\ubcf4\ub2e4 \uc0c1\uc704 \uac1c\ub150\uc5d0 \uc788\uc73c\uba70 NURBS \ud558\ub098\ub97c \uac00\uc9c0\uace0 \uadf8 \uc774\ud558 \uace1\uc120\uc5d0\uc11c \ucd94\uad6c\ud558\uace0 \uad6c\ud604\ub418\uc5c8\ub358 \uac83\uc774 \ub2e4 \uac00\ub2a5\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<br \/>\n\uc774\ub97c\u00a0\uc790\uc138\ud558\uac8c \uc124\uba85\ud558\uc790\uba74, NURBS\ub294 \uc55e\uc5d0\uc11c \ub9d0\ud588\ub4ef\uc774 Non-Uniform Rational B-Spline, \uc989 NURBS \uace1\uc120\uc774\uba70 \ube44\uade0\uc77c \ub9e4\ub4ed \ubca1\ud130\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. NURBS \uace1\uc120\uc740 Non-Rational B-Spline\uacfc BEZIER \uace1\uc120\ubfd0 \uc544\ub2c8\ub77c \uc9c1\uc120\uacfc 2\ucc28\uc758 \ud574\uc11d\uc801 \uace1\uc120\uc744 \ud558\ub098\uc758 \ud615\ud0dc\ub85c \ub098\ud0c0\ub0bc \uc218 \uc788\uc73c\uba70, \uadfc\uc0ac\uc801\uc778 \ubaa8\ub4dc\ub098 \ubcf4\uac04\uc801\uc778 \ud615\ud0dc\ub85c\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc989 NURBS\ub294 \ubaa8\ub4e0 \uace1\uc120\uc744 \ud3ec\uc6a9\ud558\ub294 \ud2b9\uc131\uc774 \uc788\uc5b4 \uace1\uc120\uc758 \ud45c\uc900\uc73c\ub85c \uc124\uba85\ud560 \uc218 \uc788\uc73c\uba70 Linear, Bezier, Cardinal, B-Splines \uace1\uc120\uc740 NURBS\uc758 \ud558\uc704 \uac1c\ub150\uc774\ub77c\uace0 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\ub978 \uace1\uc120\uc73c\ub85c \uad6c\ud604\ud560 \uc218 \uc788\ub294 \uac83\uc774\uba74 \ubaa8\ub450 NURBS\ub85c\ub3c4 \uad6c\ud604\ud560 \uc218 \uc788\ub2e4\ub294 \uc7a5\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc9c0\uc694.<br \/>\n\uc774\ub97c \ub2e4\uc2dc \uac70\uafb8\ub85c \uc0dd\uac01\ud558\uba74, \ub119\uc2a4\ucee4\ube0c\ub294 \uc704\uc5d0\uc11c \uc5b8\uae09\ub41c \uc2a4\ud50c\ub77c\uc778 \ucee4\ube0c\ub4e4\uc758 \uc7a5\uc810\uc744 \uace0\ub8e8 \uac16\uace0 \uc788\ub2e4\ub294 \uc18c\ub9ac\uae30\ub3c4 \ud569\ub2c8\ub2e4. \uce74\ub514\ub110 \uc2a4\ud50c\ub77c\uc778\ucc98\ub7fc \ucee4\ube0c\uc758 \uc2dc\uc791\uc810\uacfc \ub05d\uc810\uc5d0\uc11c\ub294 \ucee8\ud2b8\ub864 \ud3ec\uc778\ud2b8\ub97c \uc9c0\ub098\uba74\uc11c\ub3c4 \uc911\uac04 \uc810\ub4e4\uc5d0\uc11c\ub294 Approximating spline\ucc98\ub7fc \ucee8\ud2b8\ub864 \ud3ec\uc778\ud2b8 &#8220;\uc8fc\ubcc0&#8221;\uc744 \uc9c0\ub098\uae30 \ub54c\ubb38\uc5d0 \ubd80\ub4dc\ub7ec\uc6b4 \uace1\ub960\uc744 \uac16\uc2b5\ub2c8\ub2e4. \ub610\ud55c \ub119\uc2a4\ucee4\ube0c\ub294 \ucee8\ud2b8\ub864 \ud3ec\uc778\ud2b8 \uc678\uc5d0 \ucee4\ube0c\uc704\uc5d0 \uc874\uc7ac\ud558\ub294 edit point\ub77c\uace0\ud558\ub294 \ubcc4\ub3c4\uc758 \uc870\uc808 \uc810\ub4e4\uc744 \uac16\uae30 \ub54c\ubb38\uc5d0 \uc0c1\ud669\uc5d0 \ub530\ub77c \uc815\ud655\ub3c4\uac00 \ud544\uc694\ud55c \uacbd\uc6b0\uc5d0\ub294 \uce74\ub514\ub110 \uc2a4\ud50c\ub77c\uc778\ucc98\ub7fc \uc9c1\uc811 \ucee4\ube0c\uac00 \uc9c0\ub098\ub294 \uc704\uce58\ub97c \uc870\uc808\uc744 \ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \ub119\uc2a4\ucee4\ube0c\uac00 \uac00\uc9c0\ub294 \ub610 \ud558\ub098\uc758 \uc911\uc694\ud55c \ud2b9\uc9d5\uc740, \uac01\uac01\uc758 \ucee8\ud2b8\ub864 \ud3ec\uc778\ud2b8\ub9c8\ub2e4 weight\ub97c \uc870\uc815\ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc778\ub370 \uc774 weight\uac12\uc774 \ud074\uc218\ub85d \ucee4\ube0c\ub294 \uadf8 \ucee8\ud2b8\ub864 \ud3ec\uc778\ud2b8 \ucabd\uc73c\ub85c \uce58\uc6b0\uce58\uac8c \ub418\ubbc0\ub85c \ucee8\ud2b8\ub864 \ud3ec\uc778\ud2b8\uc758 \uc704\uce58\uc774\ub3d9 \uc5c6\uc774 \ucee4\ube0c\uc758 \ubbf8\uc138\ud55c \uace1\ub960\uae4c\uc9c0 \uc870\uc815\ud560 \uc218 \uc788\ub2e4\ub294 \uc7a5\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7f0 weight\ub97c \uc870\uc815\ud560 \uc218 \uc788\ub2e4\ub294 \uc810 \ub54c\ubb38\uc5d0 NURBS\ub294 \ub2e4\ub978 \uc5ec\ud0c0 \uace1\uc120\uc5d0 \ube44\ud574 \ub9ce\uc740 \uc790\uc720\ub3c4\ub97c \uac00\uc9c0\uace0 \uc788\uc73c\uba70 \uc774\ub7f0 \ud2b9\uc9d5 \ub54c\ubb38\uc5d0 \ub2e4\ub978 \uace1\uc120\uc5d0\uc11c \ub9cc\ub4e4 \uc218 \uc5c6\ub294 \ubd88\uaddc\uce59 \uace1\uc120\uae4c\uc9c0\ub3c4 \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.(\uadf8\ub798\uc11c NON-RATIONAL\uc774\uc9c0\uc694) \uadf8\ub807\uae30 \ub54c\ubb38\uc5d0 \ud604\uc7ac CG\uc5d0\uc11c \ub2e4\ub978 SPLINE\uc744 \uc81c\uce58\uace0 \uc774 NURBS \uace1\uc120\uc774 \ucc44\ud0dd\ub418\uace0 \ucd94\uc559\ubc1b\ub294 \uc774\uc720\uc774\uae30\ub3c4 \ud569\ub2c8\ub2e4.(\uc774 \ub9d0 \uc124\uba85\ud558\ub824\uace0 \uc55e\uc5d0 \uc800\ub807\uac8c \uc0bd\uc9c8?\uc744 \ud558\uac8c \ub418\uc5c8\uad70\uc694 ^^;;)<\/p>\n<div>\n<p><span class=\"imageblock\"><a style=\"color: #2b2824;\" href=\"http:\/\/fazz.tistory.com\/m\/post\/98\/slideshow?order=9\"><img decoding=\"async\" class=\"item_image able_slideshow\" src=\"http:\/\/i1.daumcdn.net\/thumb\/R750x0\/?fname=http%3A%2F%2Fcfs2.tistory.com%2Fupload_control%2Fdownload.blog%3Ffhandle%3DYmxvZzM5NTQxQGZzMi50aXN0b3J5LmNvbTovYXR0YWNoLzEvMTE2LmdpZg%253D%253D%26filename%3D008.gif\" alt=\"\uc774\ubbf8\uc9c0\" \/><\/a><\/span><\/p>\n<\/div>\n<p align=\"center\">(\uadf8\ub9bc 8. NURBS\uc758 \ub3c4\ud574)<\/p>\n<div>\n<p><span class=\"imageblock\"><a style=\"color: #2b2824;\" href=\"http:\/\/fazz.tistory.com\/m\/post\/98\/slideshow?order=10\"><img decoding=\"async\" class=\"item_image able_slideshow\" src=\"http:\/\/i1.daumcdn.net\/thumb\/R750x0\/?fname=http%3A%2F%2Fcfs3.tistory.com%2Fupload_control%2Fdownload.blog%3Ffhandle%3DYmxvZzM5NTQxQGZzMy50aXN0b3J5LmNvbTovYXR0YWNoLzAvODkuZ2lm%26filename%3D009.gif\" alt=\"\uc774\ubbf8\uc9c0\" \/><\/a><\/span><\/p>\n<\/div>\n<p align=\"center\">(\uadf8\ub9bc 9. \uac01 SPLINE\uc758 \ud2b9\uc9d5\uc744 \ub2e4\uc774\uc81c\uc2a4\ud2b8 \ud55c \uadf8\ub9bc)<\/p>\n<p align=\"left\">\ub2e4\uc74c \ud3ec\uc2a4\ud305\uc5d0\uc11c\ub294 \uc774 \uc9c0\uc2dd\uc744 \uac00\uc9c0\uace0 NURBS \ubaa8\ub378\ub9c1\uc758 \ud2b9\uc9d5\uacfc \uc7a5\ub2e8\uc810\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4.(\uc6d0\ub798 \uadf8\uac83\uc774 2\ubc88\uc9f8 \ud3ec\uc2a4\ud305\uc774 \ub418\uc5b4\uc57c \ud588\ub294\ub370&#8230;&#8230;. \uace0\ub85c \uc774\ubc88 \ud3ec\uc2a4\ud305\uc740 \uc55e\uc5d0\uc11c\ub3c4 \ub9d0\ud588\uc9c0\ub9cc \uadf8\ub0e5 \ub118\uc5b4\uac00\ub3c4 \ubb34\ubc29\ud560\ub4ef \ud569\ub2c8\ub2e4. ^-^;; (\uadf8\ub7f4 \ubc14\uc5d0\ub294 \uc65c \uc37c\uc5b4?)<\/p>\n<p>\ubc40\ubc1c) \uc5b8\uc81c\ub098 \uc798\ubabb\ub41c \uc810 \ub9ac\ud50c\ub85c \uc9c0\uc801\ud574\uc8fc\uc2dc\uba74 \uac10\uc0ac\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>http:\/\/fazz.tistory.com\/m\/post\/98 NURBS\ub294 Non-Uniform Rational B-Spline\uc758 \uc57d\uc790\ub85c\uc368 \uc77c\uc885\uc758 \ucef4\ud4e8\ud130\uc5d0\uc11c \uace1\ub960\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\ub294 \uc5ec\ub7ec \uc120(SPLINE) \uc885\ub958\uc911 \ud558\ub098\uc778\ub370 \uc774 NURBS\ub97c \uc124\uba85\ud558\ub824\uba74 \uba3c\uc800 SPLINE\uc758 \uc885\ub958\uc5d0 \ub300\ud55c \uc774\ud574\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uadf8\ub798\uc11c \uba3c\uc800 \uac01 SPLINE\uc758 \uc885\ub958\uc640 \uadf8\uc5d0 \ub530\ub978 \uc544\uc8fc \uac04\ub2e8\ud55c \uc124\uba85\uc744 \ud55c \ub2e4\uc74c NURBS\uc5d0 \ub300\ud574 \ubcf8\uaca9\uc801\uc73c\ub85c \ub2e4\ub904\ubcf4\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4. \uadf8\ub807\uae30\uc5d0 \uc774\ubc88\uc5d0\ub294 NURBS \ubaa8\ub378\ub9c1\uc5d0 \uad00\ud55c \uc804\ubc18\uc801\uc778 \uc124\uba85\uc744 \ub2e4\ub8e8\uc9c0 \ubabb\ud558\uace0 \ub2e4\uc74c \ud3ec\uc2a4\ud305\uc73c\ub85c \ub118\uaca8\uc57c\uaca0\uad70\uc694.(\uc0dd\uac01\uc9c0\ub3c4 \uc54a\uac8c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[81,13],"tags":[64],"class_list":["post-776","post","type-post","status-publish","format-standard","hentry","category-area","category-programming","tag-programming"],"_links":{"self":[{"href":"http:\/\/yoonhada.com\/index.php?rest_route=\/wp\/v2\/posts\/776","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/yoonhada.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/yoonhada.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/yoonhada.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/yoonhada.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=776"}],"version-history":[{"count":1,"href":"http:\/\/yoonhada.com\/index.php?rest_route=\/wp\/v2\/posts\/776\/revisions"}],"predecessor-version":[{"id":2200,"href":"http:\/\/yoonhada.com\/index.php?rest_route=\/wp\/v2\/posts\/776\/revisions\/2200"}],"wp:attachment":[{"href":"http:\/\/yoonhada.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=776"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/yoonhada.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=776"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/yoonhada.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=776"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}